Expandable liner

Abstract

An expandable liner includes an expandable tubular having a threaded connection and a support layer comprising polyurea disposed around an exterior of the expandable tubular.

1 . An expandable liner, comprising:
 an expandable tubular having a threaded connection; and   a support layer comprising polyurea disposed around an exterior of the expandable tubular.   
     
     
         2 . The liner of  claim 1 , further comprising a sealing member disposed at each end of the tubular. 
     
     
         3 . The liner of  claim 1 , wherein the support layer has a thickness between 0.02 inches and 0.3 inches. 
     
     
         4 . The liner of  claim 1 , wherein the support layer is disposed on at least 15% of the exterior surface of the tubular. 
     
     
         5 . The liner of  claim 1 , wherein the expandable tubular has a minimum yield strength between 20,000 psi and 80,000 psi. 
     
     
         6 . The liner of  claim 1 , wherein the support layer is effective at sealing fluid communication. 
     
     
         7 . The liner of  claim 1 , wherein the tubular has an elongation property between at least 20% and 50%. 
     
     
         8 . The liner of  claim 1 , wherein the support layer is temperature resistant between 40° F. and 1,000° F. 
     
     
         9 . The liner of  claim 1 , wherein the support layer has a compressibility between 0% and 85%. 
     
     
         10 . The liner of  claim 1 , wherein the support layer is sufficiently resistant to abrasion to protect the tubular from abrasive rubbing during run in. 
     
     
         11 . The liner of  claim 1 , wherein the support layer is disposed on a connection of the tubular. 
     
     
         12 . The liner of  claim 1 , wherein the expandable tubular comprises coiled tubing. 
     
     
         13 . The liner of  claim 1 , wherein the support layer include a metal particle selected from the group consisting of balls or chips made of steel, Carbide, or other metals having sufficient strength to enhance toughness, anchoring capacity, resistance to fluid migration, resistance to cutting, and combinations thereof. 
     
     
         14 . The liner of  claim 1 , wherein the support layer include a non-metal particle selected from the group consisting of silicate sand, ceramic chips, or other non-metals having sufficient strength to enhance toughness, anchoring capacity, resistance to fluid migration, resistance to cutting, and combinations thereof. 
     
     
         15 . The liner of  claim 1 , wherein the support layer further comprises a swellable elastomer. 
     
     
         16 . The liner of  claim 1 , wherein the support layer has variable thickness along a length of the expandable tubular. 
     
     
         17 . The liner of  claim 1 , wherein the support layer is configured to prevent corrosion of the expandable tubular. 
     
     
         18 . The liner of  claim 1 , wherein the support layer is disposed on substantially an entire length of the expandable tubular. 
     
     
         19 . The liner of  claim 18 , wherein the support layer has a thickness between 0.02 inches and 0.3 inches.